Flow-Based Admission Control Algorithm in the DiffServ-Aware ATM-Based MPLS Network

다국어 초록 (Multilingual Abstract)

This paper proposes a flow-based admission control al-
gorithm through an Asynchronous Transfer Mode (ATM)
based Multi-Protocol Label Switching (MPLS) network
for multiple service class environments of Integrated Ser-
vice (IntServ) and Differentiated Service (DiffServ). We propose the Integrated Packet Scheduler to accommodate
IntServ and Best Effort traffic through the DiffServ-aware MPLS core network. The numerical results of the proposed algorithm achieve
reliable delay-bounded Quality of Service (QoS) perform-
ance and reduce the blocking probability of high priority service in the DiffServ model. We show the performance behaviors of IntServ traffic negotiated by end users when
their packets are delivered through the DiffServ-aware MPLS core network. We also show that ATM shortcut connections are well tuned with guaranteed QoS service.
We validate the proposed method by numerical analysis of its performance in such areas as throughput, end-to-end
delay and path utilization.